2015 HN9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1580633698 ± 5.10e-08
Semi-major axis (a)1.2511226386 AU ± 2.83e-09
Inclination (i)14.48046790° ± 1.24e-05
Long. of Asc. Node (Ω)7.85431275° ± 5.60e-06
Arg. of Perihelion (ω)25.88017777° ± 1.97e-05
Mean Anomaly (M)15.20594303° ± 1.51e-05
Mean Motion (n)0.7043077258°/day ± 2.39e-09
Perihelion dist (q)1.05336598 AU ± 6.38e-08
Aphelion dist (Q)1.44887930 AU ± 6.38e-08
Orbital Period1.39942563 yr ± 4.74e-09
Physical Parameters
H (abs. magnitude)22.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.330″
Uncertainty0
Orbit TypeAmor
MOID0.064092 AU
Observations Used88
Oppositions4
Arc Total2011-2025
First Observation Used2011-10-19
Last Observation Used2025-10-16
Observations (89)
Date Type RA Dec Mag Band Observatory
2011-10-19 05:27:28 C 20 41 39.23 -05 42 51.8 W F51
2011-10-24 05:15:36 C 20 48 01.01 +01 13 11.8 W F51
2011-10-24 05:31:56 C 20 48 01.73 +01 14 06.2 W F51
2015-04-18 01:11:09 C 12 38 41.49 -18 30 11.2 L W84
2015-04-18 01:15:46 C 12 38 40.97 -18 30 12.4 L W84
2015-04-18 01:24:57 C 12 38 39.92 -18 30 15.2 L W84
2015-04-18 23:21:06 C 12 36 17.13 -18 35 51.6 L W84
2015-04-18 23:25:41 C 12 36 16.60 -18 35 52.9 L W84
2015-04-18 23:30:19 C 12 36 16.11 -18 35 54.3 L W84
2015-04-18 23:35:02 C 12 36 15.59 -18 35 55.6 L W84
2015-04-18 23:39:42 C 12 36 15.07 -18 35 56.7 L W84
2015-04-20 03:50:32 C 12 33 14.82 -18 43 04.3 o 291
2015-04-20 04:06:08 C 12 33 13.12 -18 43 08.1 o 291
2015-04-20 23:22:39 C 12 31 13.36 -18 47 09.7 L W84
2015-04-20 23:31:53 C 12 31 12.36 -18 47 11.7 L W84
2015-04-20 23:36:29 C 12 31 11.90 -18 47 12.8 L W84
2015-04-20 23:41:01 C 12 31 11.38 -18 47 13.5 L W84
2015-04-21 23:19:40 C 12 28 47.37 -18 52 16.6 L W84
2015-04-21 23:24:15 C 12 28 46.90 -18 52 17.8 L W84
2015-04-21 23:28:50 C 12 28 46.43 -18 52 18.7 L W84
2015-04-21 23:33:31 C 12 28 45.95 -18 52 19.6 L W84
2015-04-21 23:38:12 C 12 28 45.47 -18 52 20.7 L W84
2022-02-25 14:55:13 C 14 25 49.567 -09 04 19.14 V F52
2022-02-25 15:06:13 C 14 25 49.527 -09 04 27.30 V F52
2022-02-25 15:17:11 C 14 25 49.524 -09 04 34.08 V F52
2022-02-25 15:28:00 C 14 25 49.468 -09 04 41.81 V F52
2025-09-16 05:50:05 C 23 56 29.239 -46 34 04.08 V W68
2025-09-16 06:30:45 C 23 56 19.330 -46 32 13.09 V W68
2025-09-16 07:11:20 C 23 56 09.478 -46 30 20.02 V W68
2025-09-16 07:35:31 C 23 56 03.725 -46 29 11.11 V W68
2025-09-16 09:30:14 C 23 55 36.83 -46 23 41.9 W X09
2025-09-16 09:35:19 C 23 55 35.71 -46 23 26.7 W X09
2025-09-17 04:36:27 C 23 51 31.313 -45 30 29.16 V W68
2025-09-17 05:21:19 C 23 51 19.997 -45 28 17.90 V W68
2025-09-17 05:25:54 C 23 51 19.006 -45 28 04.76 V W68
2025-09-17 05:33:47 C 23 51 16.985 -45 27 41.40 V W68
2025-09-17 05:37:45 C 23 51 15.982 -45 27 29.48 V W68
2025-09-17 06:28:02 C 23 51 03.550 -45 24 59.00 V W68
2025-09-17 06:32:40 C 23 51 02.383 -45 24 45.29 V W68
2025-09-17 07:13:49 C 23 50 52.255 -45 22 39.29 V W68
2025-09-17 09:09:12 C 23 50 24.60 -45 16 40.0 W X09
2025-09-17 09:14:17 C 23 50 23.38 -45 16 23.7 W X09
2025-09-17 10:16:56 B 23 50 20.594 -45 13 18.19 X E52
2025-09-17 10:27:21 B 23 50 18.137 -45 12 49.21 X E52
2025-09-17 10:37:18 B 23 50 15.775 -45 12 20.95 X E52
2025-09-17 14:34:46 C 23 49 17.02 -45 00 50.1 V E23
2025-09-17 14:55:56 C 23 49 11.72 -44 59 44.6 V E23
2025-09-17 15:17:06 C 23 49 06.48 -44 58 39.3 V E23
2025-09-17 23:38:26 C 23 47 14.736 -44 32 59.82 V M22
2025-09-18 00:20:12 C 23 47 04.243 -44 30 46.87 V M22